I have a databases where I am performing some house cleanup. I ran DBCC SHOWCONTIG WITH TABLERESULTS, ALL_INDEXES on a database 258 out of 604 indexes reported scan density below 70. I ran a job DBCC REINDEX and sp_update stats and the numbers didnt change much. What are exceptable numbers for Scan Density? And how do I go about raising these fragmentation levels? Do I need to create drop existing all CLUSTERED INDEXES for it to work?